<template>
<div>
<!--  面包屑导航区域-->
  <el-breadcrumb separator-class="el-icon-arrow-right">
    <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
    <el-breadcrumb-item>用户管理</el-breadcrumb-item>
    <el-breadcrumb-item>用户列表</el-breadcrumb-item>
  </el-breadcrumb>

<!--  卡片视图区域-->
  <el-card>
<!--    搜索区域-->
     <el-row :gutter="20">
       <el-col :span="8">
         <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
          <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
         </el-input>
       </el-col>
       <el-col :span="4">
         <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
       </el-col>
     </el-row>
<!--    表格数据区域-->
    <el-table :data="userList" style="width: 100%" border stripe>
      <el-table-column type="index" label="#"></el-table-column>
      <el-table-column
        prop="username"
        label="姓名"
        width="180">
      </el-table-column>
      <el-table-column
        prop="email"
        label="邮箱">
      </el-table-column>
      <el-table-column
        prop="mobile"
        label="电话">
      </el-table-column>
      <el-table-column
        prop="role_name"
        label="角色">
      </el-table-column>
      <el-table-column
        prop="mg_state"
        label="状态">
        <template slot-scope="scope">
<!--          {{scope.row}}-->
          <el-switch v-model="scope.row.mg_state" @change="changeUserStatus(scope.row)">
          </el-switch>
        </template>
      </el-table-column>
      <el-table-column
        prop=""
        label="操作">
        <template slot-scope="scope">
<!--          修改按钮-->
          <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
<!--          删除按钮-->
          <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUser(scope.row.id)"></el-button>
<!--          分配角色按钮-->
          <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
            <el-button type="success" icon="el-icon-setting" size="mini" @click="setRoles(scope.row)"></el-button>
          </el-tooltip>
        </template>
      </el-table-column>
    </el-table>
<!--    分页区域-->
    <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[2, 5, 10, 15]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="totalPage">
    </el-pagination>
<!--    添加用户的对话框-->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="40%" @close="addDialogClosed">
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
      <el-button @click="addDialogVisible = false">取 消</el-button>
      <el-button type="primary" @click="addDialogVisible = false" v-on:click="addUser">确 定</el-button>
      </span>
    </el-dialog>
<!--    修改用户的对话框-->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="40%" @close="editDialogClosed">
      <el-form :model="editForm" :rules="addFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
      <el-button @click="editDialogVisible = false">取 消</el-button>
      <el-button type="primary" @click="editDialogVisible = false" v-on:click="editUser()">确 定</el-button>
      </span>
    </el-dialog>
<!--    分配角色的对话框-->
    <el-dialog
      title="分配角色"
      :visible.sync="setRolesDialogVisible"
      width="50%" @close="setRolesDialogClosed">
      <div>
        <p>当前用户名： {{userInfo.username}}</p>
        <p>当前角色：   {{userInfo.role_name}}</p>
        <p>分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
    <el-button @click="setRolesDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo()">确 定</el-button>
  </span>
    </el-dialog>
  </el-card>
</div>
</template>

<script>
export default {
  name: 'Users',
  data () {
    // 自定义表单验证规则
    const checkEmail = (rule, value, callback) => {
      const regEmail = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/
      if (regEmail.test(value)) {
        // 合法邮箱
        return callback()
      }
      callback(new Error('邮箱格式不正确'))
    }
    const checkMobile = (rule, value, callback) => {
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        // 合法手机号
        return callback()
      }
      callback(new Error('手机号不正确'))
    }
    return {
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      userList: [],
      totalPage: 0,
      addDialogVisible: false,
      editDialogVisible: false,
      // 添加用户 对话框 数据绑定对象
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      userInfo: '',
      setRolesDialogVisible: false,
      // 分配角色 下拉框中的角色列表
      rolesList: [],
      selectedRoleId: '',
      // 修改用户的数据对象
      editForm: {},
      // 添加用户 对话框 验证规则
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取用户列表失败！')
      // console.log(res)
      // this.$message.success(res.meta.msg)
      // 将数据保存到data中
      this.userList = res.data.users
      this.totalPage = res.data.total
      // console.log(this.userList)
    },
    // 监听 pagesize 的变化
    handleSizeChange (newSize) {
      console.log(`每页${newSize}条`)
      this.queryInfo.pagesize = newSize
      // 更新数据
      this.getUserList()
    },
    // 监听 当前页码的变化
    handleCurrentChange (val) {
      console.log(`当前页：${val}`)
      this.queryInfo.pagenum = val
      // 更新数据
      this.getUserList()
    },
    // 监听switch 开关状态的变化
    async changeUserStatus (newVal) {
      // console.log(newVal)
      const { data: res } = await this.$http.put(`users/${newVal.id}./state/${newVal.mg_state}`)
      // console.log(res)
      if (res.meta.status !== 200) {
        newVal.mg_state = !newVal.mg_state
        this.$message.error('更新用户状态失败')
      } else {
        this.$message.success('更新用户状态成功')
      }
    },
    // 添加用户 对话框关闭处理事件
    addDialogClosed () {
      // 重置表单
      this.$refs.addFormRef.resetFields()
    },
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        // console.log(valid)
        if (!valid) return

        // 发起添加用户的请求
        const { data: res } = await this.$http.post('users', this.addForm)
        console.log(res)
        if (res.meta.status !== 201) return this.$message.error('添加用户失败')
        this.$message.success('添加用户成功')
        // 重新获取用户列表数据
        this.getUserList()
      })
    },
    editUser () {
      this.$refs.editFormRef.validate(async valid => {
        // console.log(valid)
        if (!valid) return this.$message.error('修改用户信息失败')
        await this.$http.put('users/' + this.editForm.id,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          })
        this.$message.success('修改用户信息成功')
        // console.log(this.editForm)
        // 重新获取数据
        this.getUserList()
      })
      // console.log(this.editForm.id)
    },
    // 修改用户对话框 的显示与隐藏
    async showEditDialog (id) {
      const { data: res } = await this.$http.get('users/' + id)
      this.editForm = res.data
      // console.log(res)
      // console.log(id)
      this.editDialogVisible = true
      // console.log(this.editForm)
    },
    // 监听修改用户对话框的关闭事件
    editDialogClosed () {
      // 重置表单
      this.$refs.editFormRef.resetFields()
    },
    removeUser (id) {
      // console.log(id)
      this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(async result => {
        // console.log(result)
        // 删除用户
        const { data: deleteResult } = await this.$http.delete('users/' + id)
        // console.log(deleteResult)
        if (deleteResult.meta.status !== 200) return this.$message.error('删除用户失败')
        this.$message.success('删除用户成功')
        // 重新获取用户列表
        this.getUserList()
      }).catch(err => {
        this.$message.info('取消了删除操作')
        return err
      })
    },
    // 分配角色
    async setRoles (userInfo) {
      this.userInfo = userInfo
      // console.log(userInfo)
      // 获取下拉框中的角色列表
      const { data: res } = await this.$http.get('roles')
      // console.log(res.data[0].roleName)
      this.rolesList = res.data
      // this.rolesList = res.data.roleName
      console.log(this.rolesList)
      this.setRolesDialogVisible = true
    },
    async saveRoleInfo () {
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })
      if (res.meta.status !== 200) {
        return this.$message.error('分配角色失败！')
      }
      this.$message.success('分配角色成功！')
      this.setRolesDialogVisible = false
      this.getUserList()
    },
    // 监听 分配角色对话框 的关闭
    setRolesDialogClosed () {
      this.selectedRoleId = ''
      this.rolesList = []
    }
  },
  created () {
    this.getUserList()
  }
}
</script>

<style lang="less" scoped>
</style>
